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New submodule: HETP aerosol thermodynamics #55

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merged 4 commits into from
Apr 29, 2024

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lizziel
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@lizziel lizziel commented Apr 11, 2024

Name and Institution (Required)

Name: Lizzie Lundgren
Institution: Harvard University

Describe the update

This PR adds the ISOROPPIA II aerosol thermodynamics package with HETPv1.0 as a new git submodule. From the HETP README:

HETP is an aerosol thermodynamic equilibrium solver written in modern Fortran based on ISORROPIA II (which is written in FORTRAN 77). HETP solves only the 'forward' metastable state of the NH4+/Na+/Ca2+/K+/Mg2+/SO42–/NO3–/Cl–/H2O system. The main publication for HETP is avaiable online at: https://gmd.copernicus.org/preprints/gmd-2023-159/.

Note that this PR can be merged prior to updates in GEOS-Chem to use HETP without issue. However, it is required before the updates to GEOS-Chem in PR geoschem/geos-chem#2244.

Expected changes

Preliminary 1-month full chemistry benchmarks comparing ISORROPIA with HETPv1.0 in GEOS-Chem are posted here.

Reference(s)

See https://gmd.copernicus.org/articles/17/2197/2024/gmd-17-2197-2024-discussion.html

Related Github Issue(s)

@lizziel lizziel added the category: Submodule Update Instructions Instructions for updating submodule hashes label Apr 11, 2024
@lizziel lizziel added this to the 14.4.0 milestone Apr 11, 2024
@lizziel lizziel force-pushed the feature/hetp_aerosol_thermodynamics branch from 75bf47b to f8db18f Compare April 11, 2024 17:47
@lizziel lizziel marked this pull request as ready for review April 18, 2024 13:52
Signed-off-by: Lizzie Lundgren <[email protected]>
@yantosca yantosca self-requested a review April 26, 2024 16:57
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Thanks @lizziel! This is good to merge after geoschem/geos-chem#2244.

@yantosca yantosca merged commit 1bb3cba into dev/14.4.0 Apr 29, 2024
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@yantosca yantosca deleted the feature/hetp_aerosol_thermodynamics branch April 29, 2024 16:03
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2 participants